JP6049909B2 - humidifier - Google Patents

Description

  The present invention relates to a humidifier.

  As a humidifier that humidifies air, for example, there is a vaporizing humidifier. The vaporizing humidifier is equipped with a humidifying material having water absorption performance, and when the airflow passes through the surface of the humidifying material containing water, the moisture in the humidifying material is vaporized and evaporated by exchanging heat with the airflow. Humidify. Conventionally, vaporizing humidifiers are required to improve humidification performance and maintain humidification performance over a long period of time.

  Vaporizing humidifiers, especially the windward end and leeward end of humidifiers, tend to vaporize by ventilation, so the concentration of scale components such as silica and minerals contained in the water supply can be easily concentrated, and the scale There was a problem of easy deposition. Various methods and apparatuses have been studied to solve this problem. The silica component is, for example, calcium silicate, magnesium silicate, aluminum silicate, silicate colloid, or the like. The mineral component is, for example, calcium carbonate, magnesium carbonate, calcium sulfate, magnesium hydroxide, calcium phosphate or the like.

  For example, conventionally, a moisture permeable tube is provided, and the moisture coating that reduces the amount of evaporation by reducing the moisture permeability in the region by applying a resin coating to the scale deposition region in which the amount of deposition of the scale component is partially biased. There was a vessel (Patent Document 1). The humidifier described in Patent Document 1 suppresses precipitation of scale components by applying a resin coating to the scale deposition region, and suppresses partial deterioration of the moisture-permeable tube to improve durability.

  Conventionally, there has been a water-absorbing humidifying material containing copper wire, powdered copper, or copper consisting of a copper plate or a net having a large number of openings, and further containing carbon fibers or metal wires other than copper (Patent Document 2). ). The water-absorbing humidifier described in Patent Document 2 aims to suppress the generation of bacteria by containing copper. In addition, the water-absorbing humidifier described in Patent Document 2 is a scale that utilizes the fact that copper and carbon fiber have an electrochemical potential difference and are ionized by passing water as an electrolyte between both substances. Is intended to suppress the precipitation.

JP 2007-155201 A ([0021], FIG. 1) JP-A-7-318117 ([0021] to [0023], FIG. 1)

  However, since the moisture-permeable tube described in Patent Document 1 has a resin coating on the surface of the moisture-permeable tube on the water supply side, there has been a problem that the original humidification performance of the moisture-permeable tube is lowered. Moreover, since the moisture-permeable tube described in Patent Document 1 has a resin coating only on the side of the breathable tube on the leeward side, it is locally applied to the moisture-permeable tube main body at the leeward side or at the interface between the moisture-permeable tube and water supply. There is a problem that white powder is scattered without preventing the scale from adhering, the interior of the room and the like is contaminated, and the humidification performance is lowered.

  In addition, the water-absorbing humidifier described in Patent Document 2 is difficult to ionize the water supply to the extent that scale precipitation is suppressed, and local scale adhesion to the windward side cannot be suppressed. There is a problem that the humidification performance is deteriorated due to accumulation, and the adhered scales are scattered and the interior of the room is contaminated.

  The present invention has been made against the background of the above-described problems, and an object of the present invention is to obtain a humidifier that suppresses adhesion of scale and suppresses a decrease in humidification performance.

The humidifier according to the present invention comprises a humidifying material impregnated with water, a water supply means for supplying moisture to the humidifying material, a water supply means for supplying moisture to the water supply means for supplying moisture to the humidifying material, and a blowing means for supplying air to the humidifying element, said water supply means, windward side end surface located closest to said blowing means side of the front Symbol humidifying element, and located on the opposite side of the windward end surface It is provided on at least one of the leeward side end surfaces, and covers the humidifying material so that the average fiber bundle direction is orthogonal to the average blowing direction and parallel to the vertical direction of the humidifying material .

The present invention, water absorbing material is a water supply means for supplying water to the humidifying element is, on the leeward side end face positioned on the opposite side of the most windward-side end face located on the blowing means side, and the windward side end face of the pressure Shimezai Since it is provided on at least one of the surfaces, it is possible to suppress the scale from adhering to the humidifying material. Therefore, according to this invention, the fall of humidification performance can be suppressed. Moreover, scattering of white powder on the attached scale can be suppressed.

It is a figure which shows the basic composition of the humidifier 100 which concerns on Embodiment 1 of this invention. It is a figure which shows the humidification material 1 of the humidifier 100 which concerns on Embodiment 1 of this invention. It is a figure which shows the shape of the water absorbing material 2 of the humidifier 100 which concerns on Embodiment 1 of this invention. It is a figure which shows the state which expand | deployed the water absorbing material 2 of FIG. It is the schematic which shows the water supply penetration | infiltration direction from the water absorption material 2 of the humidifier 100 which concerns on Embodiment 1 of this invention to the humidification material 1, and the flowing water direction in the water absorption material 2. FIG. It is a figure which shows the basic composition of the humidifier 200 which concerns on a comparative example. It is a figure which shows the result of having performed the continuous humidification experiment about the humidifier 100 which concerns on Embodiment 1 of this invention, and the humidifier 200 which concerns on a comparative example. It is a figure which shows the mode of the scale 108 adhering to the humidification material 101 of the humidifier 200 which concerns on a comparative example. It is a figure which shows the 1st modification of the humidifier 100 which concerns on Embodiment 1 of this invention. It is a figure which shows the 2nd modification of the humidifier 100 which concerns on Embodiment 1 of this invention. It is a figure which shows the 3rd modification of the humidifier 100 which concerns on Embodiment 1 of this invention. It is a figure which shows the 4th modification of the humidifier 100 which concerns on Embodiment 1 of this invention. It is a figure which shows the notch | incision 11 formed in the water absorbing material 2 of the humidifier 100 which concerns on Embodiment 2 of this invention. It is a figure which shows the shape of the water absorbing material 2 of the humidifier 100 which concerns on Embodiment 3 of this invention. It is a figure which shows the wind end part coating | coated part 2b of the water absorbing material 2 of the humidifier 100 which concerns on Embodiment 3 of this invention. It is a figure which shows the 1st modification of the humidifier 100 which concerns on Embodiment 3 of this invention. It is a figure which shows the 2nd modification of the humidifier 100 which concerns on Embodiment 3 of this invention. It is a figure which shows the 3rd modification of the humidifier 100 which concerns on Embodiment 3 of this invention. It is a figure which shows the state by which the resin coating 13 was given to the water absorbing material 2 of the humidifier 100 which concerns on Embodiment 4 of this invention. It is a figure which shows the state by which the resin coating 13 was given to the humidification material 1 of the humidifier 100 which concerns on Embodiment 4 of this invention. It is the figure which showed typically how to flow of the water supply of the humidifier 100 which concerns on Embodiment 1 of this invention. It is a figure which shows the flowing water speed ratio in the average fiber bundle direction presence or absence of the water absorbing material 2 of the humidifier 100 which concerns on Embodiment 1 of this invention. It is a figure which shows the scale adhesion amount ratio to the humidification material 1 of the humidifier 100 which concerns on Embodiment 1 of this invention, and a humidification performance fall rate. It is a figure which shows the siphoning speed of the water absorbing material 2 of the humidifier 100 which concerns on Embodiment 2 of this invention. It is a figure which shows the scale adhesion amount ratio to the humidification material 1 of the humidifier 100 which concerns on Embodiment 2 of this invention. It is a figure which shows the initial humidification performance ratio of the humidifier 100 which concerns on Embodiment 3 of this invention. It is a figure which shows the scale adhesion amount ratio to the humidification material 1 of the humidifier 100 which concerns on Embodiment 4 of this invention. It is a figure which shows the scale adhesion amount ratio to the humidification material 1 of the humidifier 100 which concerns on Embodiment 5 of this invention. It is a figure which shows the outline of the pipe 23 of the humidifier 100 which concerns on Embodiment 6 of this invention. It is a figure which shows the scale adhesion amount ratio to the humidification material 1 of the humidifier 100 which concerns on Embodiment 6 of this invention. It is the schematic which shows the notch | incision of the pipe 23 of the humidifier 100 which concerns on Embodiment 6 of this invention. It is the schematic of the guide 24 of the humidifier 100 which concerns on Embodiment 1 of this invention. It is the schematic which shows the humidifying material 1 and the water absorbing material 2 which were inserted in the guide 24 of the humidifier 100 which concerns on Embodiment 1 of this invention.

Embodiment 1 FIG.
FIG. 1 is a diagram illustrating a basic configuration of a humidifier 100 according to the first embodiment. FIG. 2 is a diagram showing the humidifying material 1 of the humidifier 100 according to the first embodiment. FIG. 3 is a diagram illustrating the shape of the water absorbing material 2 of the humidifier 100 according to the first embodiment. FIG. 4 is a view showing a state in which the water absorbing material 2 of FIG. 3 is developed.

  As shown in FIG. 1, the humidifier 100 includes a humidifying material 1, a water absorbing material 2, a drain pan 3, a drain pipe 4, a water supply pipe 5, a dripping nozzle 6, and a blowing means 14. Yes. Hereinafter, each configuration will be described in detail. In FIG. 1, the air flow is indicated by the air blowing direction 7.

  The humidifying material 1 is composed of a member that can be impregnated with moisture and vaporized by ventilation, and has a top surface 1a, a windward side end surface 1b, and a leeward side end surface 1c as shown in FIG. The water absorbing material 2 is a member for supplying water supplied thereto to the humidifying material 1, and covers the top surface 1a, the windward side end surface 1b, and the leeward side end surface 1c. The water absorbing material 2 is composed of a member excellent in water absorption in the average fiber bundle direction, and is processed to have a top surface 2a, a wind upper end portion covering portion 2b, and a wind lower end portion covering portion 2c. . Here, the “average fiber bundle direction” is defined as an average direction in which the thread-like fibers are arranged as a bundle in the water absorbent material 2 in which the thread-like fibers are formed as a bundle. In addition, the water absorption material having the average fiber bundle direction is different in the flow rate of water flowing through the water absorption material in the average fiber bundle direction and the direction perpendicular thereto, or the dropping speed, the flow rate of water in the average fiber bundle direction, or It is defined as a fast dropping speed.

  The top surface 2 a is a member that covers the entire top surface 1 a of the humidifying material 1, and is a member to which water discharged from the dropping nozzle 6 is supplied. The windward end covering portion 2 b is a vertically and vertically elongated member that covers the windward end surface 1 b of the humidifying material 1. The windward lower end covering portion 2 c is a vertically and vertically elongated member that covers the leeward side end surface 1 c of the humidifying material 1. The wind upper end portion covering portion 2b and the wind lower end portion covering portion 2c are provided at the end portion of the humidifying material 1 where the scale starts to precipitate, and function as wind shields for the humidifying material 1. When a plurality of plate-like humidifiers are arranged uniformly, the corners of the humidifier 1 are inserted and fixed in a fixing jig having a concave guide 24 as shown in FIG. 33, the water absorbing material 2 and the humidifying material 1 can be fixed by inserting the lower end of the wind upper end portion covering portion 2b or the wind lower end portion covering portion 2c together with the humidifying material 1 as shown in FIG. Moreover, you may install the comb-shaped guide inserted | pinched together with the humidification material 1 in the intermediate position of the upper part of the wind upper end part coating | coated part 2b and the wind lower end part coating | coated part 2c, and a lower part. The widths of the wind upper end covering portion 2b and the wind lower end covering portion 2c are preferably about 0.5 to about 2.0 mm, for example. In the first embodiment, the wind upper end covering portion 2b and the wind lower end covering portion 2c having a width of 1 to 2 mm are used.

  The drain pan 3 is formed of, for example, a box-shaped member whose upper surface is open, and receives the dripped water without being vaporized on the surface of the humidifying material 1. The drain pipe 4 is a pipe for discharging the water accumulated in the drain pan 3. The water supply pipe 5 is a pipe for supplying water to the humidifying material 1.

  The dripping nozzle 6 is a member connected to the water supply pipe 5 and is configured so that water is uniformly supplied to the entire upper surface of the water absorbing material 2. The dripping nozzle 6 is made of, for example, stainless steel and has a diameter of 1 mm. The number of the humidifying materials 1 is the same as the number of the humidifying materials 1 at a position approximately 3 mm above the boundary between the top surface 2a of the water absorbing material 2 and the wind top end covering portion 2b. Five were installed. The air blowing means 14 supplies air to the humidifying material 1. The air blowing means 14 is provided such that the air blowing direction 7 faces the windward side end surface 1b of the humidifying material 1 (the surface of the humidifying material 1 that is closest to the air blowing means).

  The humidifying material 1 is preferably constituted by a resin member or a metal plate. The humidifying material 1 is more preferably configured in a shape in which fibers having a three-dimensional network structure are entangled or in a foamed shape. Here, examples of the resin member include chemical fibers such as polyurethane, polyethylene, polyvinyl alcohol, polypropylene, polyethylene terephthalate, polyolefin fibers, polyester fibers, and acrylic fibers, and nonwoven fabrics such as felt. Examples of the metal member include titanium, stainless steel, copper, aluminum, iron, and nickel. In the case of a metal member, in order to suppress elution or corrosion of the metal member, for example, the surface of the metal member may be plated with tin.

  The humidifying material 1 is made of, for example, a member made of titanium foam metal having a porosity of 82%, a nominal hole diameter of 200 μm, a height of 875 mm, a width of 30 mm, and a thickness of 1 mm. Further, the humidifying material 1 is configured by arranging five plate-like members in parallel at equal intervals of a gap length of 5 mm. The number, size, and installation interval of the humidifying material 1 are not limited to this, and may be selected so as to meet the product specifications.

  Further, the water absorbent material 2 has an arbitrary direction with an average fiber bundle direction, and is not particularly limited as long as it is a material having good water flow and water absorbency in the direction, such as polyolefin fiber, polyester fiber, and acrylic fiber. What is formed with nonwoven fabrics, such as a chemical fiber and felt, is good. However, the water absorbing material 2 is not limited to the above as long as the dripping speed is high in the longitudinal direction of the wind upper end portion covering portion 2b or the wind lower end portion covering portion 2c even if it does not have an average fiber bundle direction. As another means for supplying moisture to the humidifying material 1, a pipe-like shape may be used. The water absorbing material 2 according to Embodiment 1 is made of acrylic fiber and has a porosity of 50% and a thickness of 2 mm.

  Further, the water absorbing material 2 of the above material may be used as the humidifying material 1, and the water absorbing material 2 and the humidifying material 1 may be the same material. When the material of the water absorbing material 2 is used for the humidifying material 1, the average fiber bundle direction is not particularly limited, but it is preferable that the water absorbing material 2 is installed so as to be in the same direction as the humidifying material vertical direction. This is because when the humidifier is installed in the same direction as the vertical direction, the dropping speed is fast, so that water flows down before the scale is deposited. However, since the water-absorbing material 2 made of acrylic fiber selected in the first embodiment has a smaller surface area than the humidifying material 1 made of titanium, in order to obtain a humidifying performance equivalent to the humidifying material 1, It is necessary to increase the number of sheets.

  Further, it is preferable to process one water absorbing material 2 so that the top surface 2a, the wind upper end portion covering portion 2b, and the wind lower end portion covering portion 2c are integrated as much as possible, but the end material is not produced as much as possible. Thus, the humidifying material 1 may be covered with each part processed individually. In that case, at least the top surface 2a, the wind top end covering portion 2b, and the wind bottom end covering portion 2c are arranged so that the water supply from the top surface 2a penetrates into the wind top end covering portion 2b and the wind bottom end covering portion 2c. It is preferable to provide a part of which is grounded.

  Further, the widths of the wind upper end covering portion 2b and the wind lower end covering portion 2c are not particularly limited as long as they have a role of windbreak, but the width of about 0.5 which is substantially the same as the end portion of the humidifying material 1 is used. It is preferable that the thickness is about 2.0 mm. However, the width of the end portion of the humidifying material 1 may not be the same as long as the progress of vaporization at the end portion of the humidifying material 1 can be suppressed. For example, even if the width of the wind upper end portion covering portion 2b and the wind lower end portion covering portion 2c is not the same as the width of the end portion of the humidifying material 1, it has a role as a windshield and has a rigid body. For example, it may be 0.5 mm or less. Further, for example, 2 mm or more may be used as long as the gap length of the humidifying material 1 having a role as a windshield, for example, a plurality of the humidifying materials 1 arranged uniformly is not blocked.

  Moreover, the cross-sectional shape of the wind upper end covering portion 2b can adopt various shapes such as a cylindrical shape, a triangular shape, a V shape, and a rectangular shape as long as it has a role of preventing wind. However, it is preferable that the cross-sectional shape of the wind upper end covering portion 2b is a quadrangle in which the plate-like water absorbent material shape can be used as it is. Moreover, in order to increase the humidification amount in addition to the role of windbreak, the wind top end covering portion 2b may be processed with irregularities that make the ventilation turbulent. This also applies to the windward end covering portion 2c. However, the shape of the wind upper end covering portion 2b and the wind lower end covering portion 2c may be different.

  Further, at least one dripping nozzle 6 is provided, and the same number as the number of humidifying materials is preferable. However, the number of humidifying materials may be less than or more than the number of humidifying materials as long as the water supply can be supplied to the water absorbing material 2. It is preferable to provide a plurality of them in consideration of supplying them as uniformly as possible. The material of the dripping nozzle 6 is made of, for example, stainless steel. However, the material is not limited to this as long as water supply can be supplied to the water absorbing material 2, and a nozzle made of resin may be used. The dripping nozzle 6 also considers supplying water as uniformly as possible to the top surface 2a, near the boundary between the top surface 2a and the wind top cover portion 2b (for example, the wind top cover of the top surface 2a). It is preferable to be provided at the end of the portion 2b side. The installation height of the dripping nozzle 6 is not limited to 3 mm and may be brought into direct contact with the water absorbing material 2. Further, there is no particular limitation as long as it can be reliably dropped onto the water absorbing material 2 even when the height is 3 mm or more and does not scatter other than the water absorbing material 2.

  In addition, the opening position of the dropping nozzle 6 on the discharge port side considers that the water dripped by the air blowing preferably flows to the leeward side (rear side) of the humidifying material 1 in the top surface 2a of the water absorbing material 2. And provided on the windward side (front side) of the humidifying material 1.

Next, the humidifying operation of the humidifier 100 will be described.
As shown in FIG. 1, the water discharged from the water supply pipe 5 is supplied to the top surface 1 a of the humidifying material 1 through the dropping nozzle 6. The water supplied to the top surface 1a of the humidifying material 1 is dropped and impregnated inside the humidifying material 1 by capillary action. The water impregnated in the humidifying material 1 diffuses throughout the humidifying material 1 and, at the same time, the air of the humidifying material 1 is vaporized and humidified by the rotation of the fan of the blowing means 14. Of the water supplied to the humidifying material 1, the water dropped without being vaporized flows down from the lower part of the humidifying material 1 to the drain pan 3 and is drained through the drain pipe 4.

  FIG. 5 is a schematic diagram showing a water supply penetration direction from the water absorbing material 2 to the humidifying material 1 and a flowing water direction in the water absorbing material 2 of the humidifier 100 according to Embodiment 1 of the present invention. As shown in FIG. 5, in the water absorbing material 2, the average fiber bundle direction of the wind upper end portion covering portion 2 b and the wind lower end portion covering portion 2 c is orthogonal to the average air blowing direction and parallel to the vertical direction of the humidifying material 1. Are provided so as to cover the windward side end surface 1b and the leeward side end surface 1c. The arrow 21 indicates the penetration direction from the water absorbent 2 to the humidifier 1, and the arrow 22 indicates the direction of water flow in the water absorbent 2.

  FIG. 21 shows the humidifying material 1 and the water absorbing material when there is no water absorbing material 2 ((a) comparative example) and when the water absorbing material 2 described in the first embodiment is installed ((b) first embodiment). It is the schematic diagram which compared the difference in the flow method of the water supply in 2. FIG. From the comparative example of FIG. 21A, when water is dropped from the dropping nozzle 6 onto the humidifying material 1, it gradually spreads from the dropped portion to the humidifying material 1 in a non-uniform state. Variations occur in the water retention state and dropping speed. If variation occurs in the water retention state or the dropping speed in the humidifying material 1, local scale components are concentrated, which causes the scale to precipitate. On the other hand, in Embodiment 1 of FIG. 21B, water supply having the same dropping flow rate as that of the comparative example is dropped onto the water absorbing material 2 having a high water flow rate in the average fiber bundle direction and temporarily retained. Thereafter, the water supply is uniformly supplied from the upper portion of the humidifying material 1 through the water absorbing material that retains the water supply. Further, water supply is also supplied to the wind upper end portion and wind lower end portion of the humidifying material 1 from the surface in contact with the water absorbing material 2. Thus, water supply can be uniformly supplied to the humidification material 1 by setting it as the structure like FIG. 1 of this Embodiment 1, and precipitation of a local scale can be suppressed.

  FIG. 22 shows the ratio of water dripping speed in the presence or absence of the average fiber bundle direction of the water absorbent material 2 (= water dripping speed at the water absorbent material A or B / water dripping speed at the water absorbent material A). The water absorbing material A does not have an average fiber bundle direction, and the water absorbing material B has an average fiber bundle direction. As shown in FIG. 22, it can be seen that the water absorbing material B having the average fiber bundle direction has a higher water dripping rate than the water absorbing material A having no average fiber bundle direction, that is, the water flow rate is better. . In addition, even if it installs the water absorbing material 2, the flow volume dripped is the same as the past. Conventionally, a part of the water supply that flows down to the drain pan without being humidified flows into the water absorbing material 2 and also transpirations from the water absorbing material itself while supplying water to the upper and lower ends of the humidifying material. Can be the same or reduced.

  In this way, by making the configuration like the humidifier 100 in which the water absorbing material 2 is installed, before the scale component in the water supply is concentrated and precipitated in the wind upper end covering portion 2b and the wind lower end covering portion 2c, The water supply flows quickly in the average fiber bundle direction. For this reason, precipitation of the scale on the water absorbing material 2 itself can be suppressed, and since the water absorbing material 2 itself is vaporized, the humidifying performance can also be improved.

  FIG. 6 is a diagram illustrating a basic configuration of a humidifier 200 according to a comparative example. As shown in FIG. 6, the humidifier 200 according to the comparative example has a configuration in which the water absorbing material 2 is not provided, unlike the humidifier 100 of the first embodiment.

  First, the humidifying operation of the humidifier 200 according to the comparative example will be described with reference to FIG. As shown in FIG. 6, the water discharged from the water supply pipe 105 is supplied to the top surface 101 a of the humidifying material 101 through the dropping nozzle 106. The water supplied to the top surface 101a of the humidifying material 101 is dropped and impregnated inside the humidifying material 101 by a capillary phenomenon. The water impregnated inside the humidifying material 101 is diffused throughout the humidifying material 101, and the fan of the blowing means 114 is rotated from the blowing direction 107 to vaporize on the surface of the humidifying material 101 to humidify the air. Of the water supplied to the humidifying material 101, the water dropped without being vaporized flows down from the lower portion of the humidifying material 101 to the drain pan 103 and is drained through the drain pipe 104.

FIG. 7 is a diagram showing a result of performing a continuous humidification experiment on the humidifier 100 according to Embodiment 1 of the present invention and the humidifier 200 according to the comparative example. Specifically, FIG. 7 is a diagram illustrating the evaluation results of the scale adhesion amount (kg / m ³ ) and the humidification performance (%). Using the humidifiers 100 and 200, a continuous humidification test was performed on a sheet of the humidifying material 1 at a wind speed of 3 m / s at a dropping flow rate of 20 ml / min until an operation time of 1000 hours corresponding to one season.

When a continuous humidification test was performed on the humidifier 200 according to the comparative example, the following results were obtained.
(1) The amount of scale attached was about 126 kg / m ³ , and the scale was locally deposited on the end of the humidifying material 101.
(2) The humidification performance was decreasing with an increase in the amount of scale attached to the initial humidification performance of 100% and decreased to about 85%.

On the other hand, when the continuous humidification test was done about humidifier 100 of this Embodiment 1, the following results were obtained.
(1) The amount of scale adhesion was about 12 kg / m ³ .
(2) The humidification performance was 100% in the initial stage and decreased to about 97%, but the initial humidification performance was almost maintained.

  As described above, the humidifier 100 according to the first embodiment was able to suppress the scale adhesion amount to about 1/10 or less as compared with the humidifier 200 according to the comparative example. Moreover, the humidifier 100 of this Embodiment 1 showed little local scale adhesion compared with the humidifier 200 which concerns on a comparative example. That is, in the humidifier 100 of the first embodiment, the scale 108 does not adhere to the humidifier 1 as shown in FIG.

  FIG. 8 is a diagram illustrating a state of the scale 108 attached to the humidifying material 101 of the humidifier 200 according to the comparative example. Specifically, FIG. 8 is a diagram showing a generation position of the scale 108 generated by performing a continuous humidification test using the humidifier 200 shown in FIG.

  As shown in FIG. 8, the scale 108 is locally deposited on the leeward end surface 101 b of the humidifying material 101 and the leeward side end surface 101 c of the humidifying material 101. Once the scale nucleus is generated, the precipitation of the scale is promoted and spreads on the surface and inside of the humidifying material 101. In particular, the scale 108 has an end portion of the humidifying material 101 at the windward end surface 101b of the humidifying material 101. It also accumulates on the outside.

  Here, the principle of depositing and depositing scale at the end of the humidifier of the humidifier will be described. Generally, tap water is used as the water supplied to the humidifying material. In tap water, silica components (eg, calcium silicate, magnesium silicate, aluminum silicate, colloidal silicate, etc.) and mineral components (eg, calcium carbonate, magnesium carbonate, calcium sulfate, magnesium hydroxide, calcium phosphate, etc.) Scale component is included. Also in the continuous humidification test described later, simulated water in which calcium carbonate was dissolved in tap water and the calcium hardness was adjusted to a high concentration of 100 mg CaCO 3 / L or more was used.

  When the water containing the scale component is humidified on the surface of the humidifying material, the concentration of the scale component is concentrated, and when the saturated dissolution concentration is exceeded, it is deposited on the humidifying material as a solid component (scale). Using the deposited scale as a nucleus, it accumulates not only inside the end of the humidifying material but also outside the humidifying material. As described above, when the scale component generated from at least one of the silica component and the mineral component is deposited and deposited on the humidifying material, the humidifying material is clogged and the humidifying performance is deteriorated. Further, the scale component starts to precipitate from the portion where the humidifying material is easily vaporized, such as the windward side end surface 1b of the humidifying material and the leeward side end surface 1c of the humidifying material, and spreads over the entire humidifying material. On the upper end face, it also accumulates on the outside of the humidifying material and causes the scattering of scale white powder.

In contrast, the humidifier 100 according to the first embodiment includes a humidifying material 1 impregnated with water, a water absorbing material 2 that supplies moisture to the humidifying material 1, and a water supply pipe that supplies moisture to the water absorbing material 2. 5 and the dripping nozzle 6, and air blowing means 14 for supplying air to the humidifying material 1, and the water absorbing material 2 is a wind located closest to the air blowing means among the top surface 1 a of the humidifying material 1 and the humidifying material 1. It is provided on at least one of the upper end face 1b and the leeward end face 1c located on the opposite side of the upwind end face 1b. For this reason, it can suppress that the scale 108 adheres to the edge part of the humidification material 1, and can suppress that the scale 108 scatters white powder. Therefore, it can suppress that the scale 108 accumulates and the humidification material 1 is clogged.
In this way, it is possible to obtain a humidifier 100 having a long life while suppressing a decrease in humidification performance.

  The top surface 2 a has a shape that covers the top surface 1 a of the humidifying material 1. For this reason, the top | upper surface 2a can hold water supply from the dripping nozzle 6 abundantly. Therefore, from the entire upper end portion of the humidifying material 1 that is in contact with the top surface 2a, the windward end surface 1b of the humidifying material 1 that is in contact with the wind upper end portion covering portion 2b and the wind lower end portion covering portion 2c are in contact. Water can be uniformly supplied to the leeward side end surface 1c of the humidifying material 1 that is present. In this way, it is possible to suppress the scale 108 from adhering to the end of the humidifying material 1. The top surface 2 a may be configured to be provided only on a part of the top surface 2 a of the humidifying material 1 without covering the top surface 1 a of the humidifying material 1.

  When the water absorbing material 2 is deteriorated, only the water absorbing material 2 may be discarded and replaced. By doing in this way, the long-life humidifying material 1 can be obtained.

  Moreover, although the water absorbing material 2 demonstrated the example provided in the top | upper surface 1a, the windward side end surface 1b, and the leeward side end surface 1c, it is not limited to this. The water absorbing material 2 may be provided on at least one of the top surface 1a, the windward side end surface 1b, and the leeward side end surface 1c. Even if comprised in this way, it can suppress that the scale 108 adheres to the humidification material 1. FIG. Therefore, it is possible to suppress a decrease in humidification performance.

  FIG. 9 is a diagram showing a first modification of the humidifier 100 according to Embodiment 1 of the present invention. As shown in FIG. 9, a water supply / storage unit 9 may be provided above the top surface 2 a of the water-absorbing material 2, and water discharged from the dropping nozzle 6 may be dropped into the water supply / storage unit 9. In this case, for example, an opening 10 may be provided in a part of the bottom of the water supply / storage unit 9, and water supplied into the water supply / storage unit 9 may permeate the water absorbing material 2 through the opening 10. .

FIG. 10 is a diagram illustrating a second modification of the humidifier 100 according to Embodiment 1 of the present invention. As shown in FIG. 10, the water-absorbing material 2 includes a top surface 2a and an upwind end covering portion 2b. That is, the water-absorbing material 2 is configured not to have the windward bottom end covering portion 2c.
As described above, the humidifier 100 in FIG. 10 obtained almost the same experimental results as the humidifier 100 in FIG. That is, even if the humidifier 100 is configured as shown in FIG. 10, the same effect as the humidifier 100 can be obtained as shown in FIG.

  FIG. 11 is a diagram showing a third modification of the humidifier 100 according to Embodiment 1 of the present invention. As shown in FIG. 11, the top surface 2 a may be provided by the number of humidifying materials 1, and the top surface 2 a may be provided for each humidifying material 1. Even when the humidifier 100 is configured as shown in FIG. 11, almost the same experimental results were obtained as when the humidifier 100 was configured as shown in FIG.

  FIG. 12 is a diagram showing a fourth modification of the humidifier 100 according to Embodiment 1 of the present invention. As shown in FIG. 12, the windward end covering portion 2b may be installed only at the lower part of the windward end surface 1b where the scale starts to precipitate. In the configuration of FIG. 12, it is not necessary to supply water to the windward end covering portion 2b, but it is preferable to supply not only the top surface 2a but also the windward end covering portion 2b. Even when the humidifier 100 is configured as shown in FIG. 12, the same experimental results as those obtained when the humidifier 100 is configured as shown in FIG. 1 were obtained. FIG. 23 shows the ratio of the amount of scale attached to the humidifying material and the rate of decrease in the humidifying performance when a continuous humidifying test is performed with the configuration of the comparative example and FIGS. 7 and 9 to 12. The scale adhesion amount ratio is defined as a value indicating the scale adhesion amount in the first embodiment as a ratio to the comparative example. The humidification performance reduction rate is defined as the rate of reduction from the initial humidification performance of 100%. As can be seen from FIG. 23, the amount of scale attached to the humidifying material 1 can be suppressed and the humidifying performance can be maintained by adopting the configuration as shown in FIGS. 7 and 9 to 12 of the first embodiment.

Embodiment 2. FIG.
FIG. 13 is a diagram showing a cut 11 formed in the water absorbent 2 of the humidifier 100 according to Embodiment 2 of the present invention. As shown in FIG. 13, in the second embodiment, unlike the first embodiment, the top surface 2 a, the wind upper end portion covering portion 2 b, and the wind lower end portion covering portion 2 c are finely arranged in the average fiber bundle direction. The incision 11 is added to improve the flowability.

  As shown in FIG. 13, a plurality of cuts 11 are randomly formed on the entire surface of the water absorbing material 2. The cut 11 has, for example, a length of about 5 mm, a depth of about 0.1 mm, and a width of about 0.1 mm. The average cutting direction of the cuts 11 is parallel to the average fiber bundle direction of the water absorbing material 2.

  The length, depth, and width of the notch 11 are not particularly limited as long as the water flow in the direction of the average fiber bundle of the water absorbent material 2 is improved, but the length is about 1 mm to about 1 cm and the depth. Is preferably about 0.1 to about 0.5 mm, and the width is preferably about 0.1 to about 0.5 mm.

  Further, the location where the cuts 11 are formed in the water absorbing material 2 may be only the top surface 2a, the wind upper end portion covering portion 2b, and the wind lower end portion covering portion 2c, or a combination of any two, but the top surface 2a, It is preferable to form it on the entire surface of the wind upper end portion covering portion 2b and the wind lower end portion covering portion 2c.

Using the humidifier 100 of the second embodiment, the same continuous humidification test as in the first embodiment was performed and the results were compared. The following comparison results (1) to (3) were obtained.
(1) As shown in FIG. 24, the water flow rates of the wind upper end portion covering portion 2b and the wind lower end portion covering portion 2c were improved by about 1.1 times as compared with the drop rate of water.
(2) The amount of scale adhered to the wind upper end covering portion 2b and the wind lower end covering portion 2c could be suppressed to about 3/4.
(3) The amount of scale attached to the humidifying material 1 could be suppressed to about 2/3. As shown in FIG. 25, compared with the comparative example, the amount of scale attached to the humidifying material 1 could be suppressed to about 1/10 or less.

  As described above, the humidifier 100 according to the second embodiment has the cut 11 formed in the water absorbing material 2. For this reason, the quantity of the water supplied to the humidification material 1 from the wind upper end part coating | coated part 2b and the wind lower end part coating | coated part 2c increases. Therefore, the amount of scale that adheres to the humidifying material 1 can be further suppressed.

  In this way, it is possible to improve the water flow of the wind upper end portion covering portion 2b and the wind lower end portion covering portion 2c without increasing the amount of water supplied from the dropping nozzle 6 to the water absorbing material 2. For this reason, clogging of the humidifying material 1 due to scale deposition can be further suppressed. Therefore, it is possible to further suppress the decrease in the humidification performance and obtain the humidifier 100 having a longer life.

Embodiment 3 FIG.
FIG. 14 is a diagram showing the shape of the water absorbing material 2 of the humidifier 100 according to Embodiment 3 of the present invention.
FIG. 15 is a diagram illustrating the wind top end covering portion 2b of the water absorbing material 2 of the humidifier 100 according to Embodiment 3 of the present invention.

  In the third embodiment, unlike the first embodiment, as shown in FIGS. 14 and 15, a plurality of protrusions 12 are provided on the surface of the windward end covering portion 2b. The protrusion 12 has, for example, a quadrangular shape with a thickness of 2 mm, a width of 1 mm, and a length of 2 mm, and protrudes in a direction perpendicular to the blowing direction of the blowing unit 14. The protrusions 12 are provided in a staggered manner in the length direction.

  When the results of performing the same continuous humidification test as in the first embodiment using the humidifier 100 according to the third embodiment are compared, as compared with the humidifier 100 according to the first embodiment as shown in FIG. Thus, a comparative result that the humidifying performance was improved by about 1.1 times was obtained.

  As described above, the humidifier 100 according to the third embodiment is provided with the protrusion 12 on the surface of the wind upper end covering portion 2b. For this reason, since ventilation can be turbulent without increasing the wind speed, the humidification performance is improved, and the amount of scale attached to the humidifying material 1 can be suppressed. Therefore, clogging of the humidifying material 1 due to scale deposition can be suppressed, and the long-life humidifier 100 having high humidification performance can be obtained.

  FIG. 16 is a diagram showing a first modification of the humidifier 100 according to Embodiment 3 of the present invention. FIG. 17 is a diagram showing a second modification of the humidifier 100 according to Embodiment 3 of the present invention. FIG. 18 is a diagram illustrating a third modification of the humidifier 100 according to Embodiment 3 of the present invention.

  In the third embodiment, the example in which the protrusion 12 has a quadrangular shape has been described. However, the present invention is not limited to this. For example, as shown in FIG. 16, the protrusion 12 may have a conical shape. Further, for example, as shown in FIG. 17, the protrusion 12 may be cylindrical. Further, for example, as shown in FIG. 18, the protrusion 12 may have a wing shape. For example, the protrusion 12 may be trapezoidal. As described above, the protrusions 12 having various shapes can be employed as long as the airflow can be turbulently flowed.

  Further, in the third embodiment, the protrusion 12 may be molded when the wind upper end portion covering portion 2b is provided, or the protrusion 12 may be attached to the formed wind upper end portion covering portion 2b. If the same protrusion 12 is provided even if the cross section of the wind-upper end covering portion 2b is cylindrical, triangular, or V-shaped, the humidification performance can be improved as in the first and second embodiments.

  In the third embodiment, the example in which the protrusion 12 is provided on the wind upper end portion covering portion 2b has been described. However, the protrusion 12 is provided on at least one of the wind upper end portion covering portion 2b and the wind lower end portion covering portion 2c. At least one may be provided. Thus, even if the protrusion 12 is provided, the above-described effect of the third embodiment can be obtained.

Embodiment 4 FIG.
FIG. 19 is a diagram showing a state where the resin coating 13 is applied to the water absorbing material 2 of the humidifier 100 according to Embodiment 4 of the present invention. As shown in FIG. 19, in the fourth embodiment, unlike the first embodiment, the resin coating 13 is applied to the surface of the wind top cover portion 2 b. The resin coating 13 is, for example, a fluorine coating.

Using the humidifier 100 of the fourth embodiment, the same continuous humidification test as in the first embodiment was performed and the results were compared. The following comparison results (1) and (2) were obtained.
(1) The amount of scale adhering to the surface of the wind upper end portion covering portion 2b to which the resin coating 13 has been applied is about 1 as compared with the amount of scale adhering to the wind upper end portion covering portion 2b to which the resin coating 13 has not been applied. / 2.
(2) The amount of scale adhering to the humidifying material 1 covered with the water absorbing material 2 having the windward upper end covering portion 2b provided with the resin coating 13 is the same as that of the windward upper end portion covering portion 2b not provided with the resin coating 13. It was about ½ of the scale adhesion amount covered with the water-absorbing material 2 having. FIG. 27 shows the result of comparing the amount of scale adhering to the humidifying material 1 in the comparative example and the fourth embodiment. As can be seen from FIG. 27, the amount of scale adhering to the humidifying material 1 could be suppressed to about 1/10 or less compared to the comparative example.

  As described above, the humidifier 100 according to Embodiment 4 has the resin coating 13 applied to the surface of the wind top end covering portion 2b. For this reason, the adhesion of the scale to the wind upper end covering portion 2b can be suppressed. Accordingly, it is possible to suppress a decrease in humidification performance.

  In the fourth embodiment, the example in which the resin coating 13 is applied to the wind upper end covering portion 2b has been described. However, the resin coating 13 may be directly applied to the windward end portion of the humidifying material 1, and the windward end surface may be provided. The resin coating 13 may be applied not only to 1b but to a width of 2 mm on both side surfaces. Even if comprised in this way, the result almost the same as the case where the resin coating 13 was given to the wind upper end part covering part 2b was able to be obtained.

  Moreover, in this Embodiment 4, although the example which performs the resin coating 13 only on the windward side surface of the wind upper end part covering part 2b was described, other than the surface in contact with the humidifying material 1 in the wind upper end part covering part 2b A resin coating 13 may be applied to the surface. Since the film thickness of the resin coating 13 is on the order of microns, the resin coating 13 may permeate the wind top end covering portion 2b.

  FIG. 20 is a diagram showing a state in which the resin coating 13 is applied to the humidifying material 1 of the humidifier 100 according to Embodiment 4 of the present invention. As shown in FIG. 20, a resin coating 13 may be applied to the windward side end surface 1 b of the humidifying material 1 that is directly hit by the wind of the humidifying material 1.

  As described above, when the resin coating 13 is directly applied to the humidifying material 1, the humidification performance of the surface on which the resin coating 13 is applied is reduced, but the scale adhesion to the humidifying material 1 can be further suppressed as compared with the related art. Specifically, a conventional humidifier in which the resin coating 13 is applied only to the side of the air permeable tube on the windward side by applying the resin coating 13 to the windward end portion of the humidifying material 1 in addition to the both side surfaces of the humidifying material 1. Scale adhesion to the humidifying material 1 can be further suppressed than (for example, Patent Document 1 described above).

  In addition to the windward end surface 1b, the resin coating 13 may be applied to both side surfaces thereof. At this time, the width of the resin coating 13 applied to both side surfaces of the humidifying material 1 is not particularly limited as long as the progress of vaporization at the end of the humidifying material 1 and the scale adhesion can be suppressed. Similarly, it is preferably about 0.5 to 2.0 mm.

  In the fourth embodiment, the example in which the resin coating 13 is a fluorine coating has been described. However, the present invention is not limited to this. The resin coating 13 only needs to be able to suppress vaporization in the wind upper end covering portion 2b, and may be subjected to vinyl chloride coating, silicon coating, or the like. And the water repellency can be improved by applying the resin coating 13 to the humidifying material 1 or the water absorbing material 2.

Embodiment 5. FIG.
In the fifth embodiment of the present invention, the configuration and specifications are the same as those in FIG. 1 of the first embodiment except that the entire water-absorbing material 2 is provided with a hydrophilic coating. The hydrophilic coating is not particularly limited as long as it can be applied and fixed to the humidifying material 1 and has long-term durability. For example, a colloidal silica coating having a concentration of 1 to 2% is preferable. FIG. 28 shows the result of comparing the amount of scale adhering to the humidifying material 1 between the comparative example and the fifth embodiment. As can be seen from FIG. 28, the amount of scale adhering to the humidifying material 1 could be suppressed to about 1/10 or less compared to the comparative example.

  As described above, the humidifier 100 according to Embodiment 5 further increases the dripping speed of the water supply flowing through the wind upper end portion covering portion 2b and the wind lower end portion covering portion 2c by applying the hydrophilic coating to the water absorbing material 2. Therefore, the amount of scale attached to the water absorbing material 2 main body and the humidifying material 1 main body can be suppressed. The hydrophilic coating on the water absorbing material 2 may not be applied to the entire water absorbing material 2 as long as it is applied to either the top surface 1a and the wind upper end covering portion 2b or the wind lower end covering portion 2c. Similar results are obtained. Further, the humidifying material 1 main body may be subjected to a hydrophilic coating. By applying the hydrophilic coating to the humidifying material 1, the water diffusion rate and flowing water rate in the humidifying material 1 can be increased, and the amount of scale adhesion can be further suppressed.

Embodiment 6 FIG.
In the sixth embodiment of the present invention, instead of the water absorbent 2 having the average fiber bundle direction, which is a means for supplying moisture to the humidifier 1, a plurality of pieces are provided on the side in contact with the humidifier 1 as shown in FIG. A dropping nozzle 6 is connected to the pipe 23 using a pipe 23 having a hole. Other than that, the configuration and specifications are the same as in FIG. 11 of the first embodiment. The pipe 23 can smoothly supply water from the hole on the side in contact with the humidifying material 1 because the water supply smoothly flows through the pipe without having the average fiber bundle direction as in the water absorbing material 2. Since the wind upper end portion and wind lower end portion of 1 are covered with the pipe 23, the amount of scale attached to the humidifying material 1 can also be suppressed. Further, since the liquid does not evaporate from the surface of the pipe 23, the scale does not adhere to the surface of the pipe 23.

  As long as the pipe 23 has at least one or more holes or long holes on the side in contact with the humidifying material 1 and covers the wind upper end portion or wind lower end portion of the humidifying material 1, the pipe 23 is made of a resin or metal circle. A tube or a polygonal tube may be used. In the resin circular tube, for example, a material such as polypropylene, polyethylene, or polytetrafluoroethylene is preferably used. The metal circular pipe includes a copper pipe and an aluminum pipe, but a stainless steel pipe is preferable in consideration of durability and the like. In the sixth embodiment, a stainless steel tube having an outer diameter of 2.0 mm / inner diameter of 1.0 mm is used, and φ0.5 mm holes are provided on the side in contact with the humidifying material 1 at six locations on the upper side of the humidifying material. The ones with 8 spaces on the lower end side were used. Other than that, a continuous humidification test was performed with the same configuration and specifications as in FIG. 11 of the first embodiment. As a result, as shown in FIG. 30, in the sixth embodiment, the amount of scale attached to the humidifying material 1 could be suppressed to about 1/10 or less as compared with the comparative example.

  In addition, the pipe diameter and the hole diameter on the side in contact with the humidifying material 1 are not limited to the above, and are not particularly limited as long as they can be processed with durability without causing a significant pressure loss compared to the conventional one. It is preferable that the outer diameter is 0.5 to 2.0 mm and the hole diameter is 0.1 to 1.5 mm with respect to 0.5 to 2.0 mm.

  Further, the side in contact with the humidifying material 1 may not be a hole, and may be a slit 25 such as a cut as shown in FIG. Although the width | variety of the slit 25 will not be specifically limited if water supply can be supplied to the humidification material 1, 0.1 to 0.1 mm with the pipe diameter of outer diameter (phi) 0.5- about 2.0 mm with respect to the humidification material width 0.5-2.0 mm. About 1.5 mm is preferable.

  As described above, the humidifier 100 according to Embodiment 6 can also suppress the amount of scale adhering to the humidifying material 1 body even if the pipe 23 is used instead of the water absorbing material 2.

  The water supply pipe 5 and the dropping nozzle 6 correspond to the water supply means of the present invention.

  DESCRIPTION OF SYMBOLS 1 Humidifying material, 1a Top surface, 1b Upwind side end surface, 1c Downward side end surface, 2 Water absorption material, 2a Top surface, 2b Upwind end part covering part, 2c Downwind end part covering part, 3 Drain pan, 4 Drain pipe, 5 Water supply pipe , 6 Drip nozzle, 7 Blowing direction, 8 Scale, 9 Water supply reservoir, 10 Opening, 11 Cut, 12 Protrusion, 13 Resin coating, 14 Blowing means, 21 Arrow, 22 Arrow, 23 Pipe, 24 Guide, 25 Slit, DESCRIPTION OF SYMBOLS 100 Humidifier, 101 Humidifier, 101a Top surface, 101b Upwind side end surface, 101c Downward side end surface, 103 Drain pan, 104 Drain pipe, 105 Water supply pipe, 106 Dropping nozzle, 107 Air blowing direction, 108 Scale, 114 Air blowing means, 200 Humidification vessel.

Claims (13)

A humidifying material impregnated with water;
Water supply means for supplying moisture to the humidifying material;
Water supply means for supplying moisture to water supply means for supplying moisture to the humidifying material;
A blowing means for supplying air to the humidifying material,
The water supply means
Provided on at least one surface of the most windward-side end face positioned on the blowing means side, and downwind-side end face positioned on the opposite side of the windward end surface of the front Symbol humidifying element, the average fiber bundle direction average blast A humidifier that covers the humidifying material so as to be orthogonal to the direction and parallel to the vertical direction of the humidifying material . The humidifier according to claim 1, wherein the water supply means is a water absorbing material. It said water supply means, also provided on the top surface of the humidifying element, humidifier according to claim 1 or claim 2 covers the entire top surface of the pre-Symbol humidifying element. The water supply means
The humidifier according to any one of claims 1 to 3 , wherein the humidifier is made of a polyolefin fiber, a polyester fiber, an acrylic fiber chemical fiber, or a felt nonwoven fabric. The humidifier according to any one of claims 1 to 4 , wherein a cut is formed in the water supply means toward an average fiber bundle direction of the water supply means. On the surface of the water supply means provided on at least one surface of the pre-Symbol style upper end surface and the downstream side end surface is formed in a direction at least one projection is perpendicular to the blowing direction of said blowing means The humidifier as described in any one of Claims 1-5 . The humidifier according to any one of claims 1 to 6, wherein a resin coating that suppresses evaporation of water is applied to a surface of the wind upper end covering portion of the water supply unit. The humidifier according to claim 1, wherein the water supply unit is made of resin. The humidifier according to any one of claims 1 to 6 , wherein the entire water supply unit is provided with a hydrophilic coating that increases a dropping rate of water. The water supply means having an average fiber bundle direction, than the water supply unit having no average fiber bundle direction, dropping rate of water into the average fiber bundle direction is faster claim 1 any one of claims 9 The humidifier described in 1. Humidifier according to any one of claims 1 to 1 0 to supplying water to the humidifying element from the surface and the water supply means and the humidifying element is in contact is supplied. The humidifier according to claim 1, wherein the water supply means is a pipe made of resin or metal. At least one or more holes or slits on the resin or metal pipe surface side in contact with the top surface of the humidifying material and at least one of the windward end surface and the leeward end surface of the humidifying material. comprising a humidifier according to claim 1 2 water from the hole or slit is supplied to the humidifying element.

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